Observation of the intrinsic pinning of a magnetic domain wall in a ferromagnetic nanowire

• Published in: Nature materials Vol. 10; no. 3; pp. 194 - 197
• Main Authors: Ono, T, Koyama, T, Chiba, D, Ueda, K, Kondou, K, Tanigawa, H, Fukami, S, Suzuki, T, Ohshima, N, Ishiwata, N, Nakatani, Y, Kobayashi, K
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.03.2011; Nature Publishing Group
• Subjects: 639/301/119/1001; 639/301/357/1016; 639/301/357/995; Adiabatic flow; Biomaterials; Chemistry and Materials Science; Condensed Matter Physics; Electric currents; Energy consumption; letter; Magnetic domains; Magnetism; Materials Science; Nanomaterials; Nanostructure; Nanotechnology; Nanowires; Optical and Electronic Materials; Pinning; Threshold currents; Torque; Walls

The spin transfer torque is essential for electrical magnetization switching. When a magnetic domain wall is driven by an electric current through an adiabatic spin torque, the theory predicts a threshold current even for a perfect wire without any extrinsic pinning. The experimental confirmation of...